/* Publications Page Specific Styles */

/* Page Hero */
.page-hero {
    padding: 150px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.1)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: bottom;
    opacity: 0.3;
}

.page-hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.8s ease-out;
}

.page-title {
    font-size: 4rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
    text-shadow: 2px 4px 10px rgba(0, 0, 0, 0.3);
}

.page-subtitle {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
}

/* Stats Section */
.publications-stats {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    margin-top: -50px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 25px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
    animation: fadeInUp 0.8s ease-out;
}

.stat-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.stat-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    flex-shrink: 0;
}

.stat-content {
    color: var(--white);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 5px;
    line-height: 1;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Publications Grid */
.publications-section {
    padding: 100px 0;
    background: var(--white);
}

.publications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.publication-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    animation: fadeInUp 0.8s ease-out;
    display: flex;
    flex-direction: column;
}

.publication-card:hover {
    transform: translateY(-15px);
    box-shadow: var(--shadow-lg);
}

.publication-icon {
    position: relative;
    height: 280px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.publication-icon img {
    width: 100%;
    max-width: 200px;
    height: auto;
    transition: var(--transition);
}

.publication-card:hover .publication-icon img {
    transform: scale(1.1) rotate(5deg);
}

.publication-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.publication-badge.journal {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.publication-content {
    padding: 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.publication-title {
    font-size: 1.3rem;
    color: var(--text-color);
    margin-bottom: 20px;
    line-height: 1.4;
    min-height: 80px;
}

.publication-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 15px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    font-size: 0.95rem;
}

.meta-item i {
    color: var(--primary-color);
}

.publication-description {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 20px;
    flex: 1;
}

.publication-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    align-self: flex-start;
}

.publication-link:hover {
    gap: 15px;
    color: var(--secondary-color);
}

.publication-link i {
    transition: var(--transition);
}

.publication-link:hover i {
    transform: rotate(45deg);
}

/* Timeline Section */
.publications-timeline {
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 60px auto 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 4px;
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
    animation: fadeInUp 0.8s ease-out;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-year {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    z-index: 2;
    flex-shrink: 0;
    position: relative;
}

.timeline-year::before {
    content: '';
    position: absolute;
    width: 140px;
    height: 140px;
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    opacity: 0;
    animation: pulse 2s ease-out infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }
    100% {
        transform: scale(1.3);
        opacity: 0;
    }
}

.timeline-content {
    flex: 1;
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    margin: 0 40px;
    transition: var(--transition);
}

.timeline-item:hover .timeline-content {
    transform: translateX(10px);
    box-shadow: var(--shadow-lg);
}

.timeline-item:nth-child(even):hover .timeline-content {
    transform: translateX(-10px);
}

.timeline-content h3 {
    color: var(--text-color);
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.timeline-content p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Staggered Animation */
.publication-card:nth-child(1) { animation-delay: 0.1s; }
.publication-card:nth-child(2) { animation-delay: 0.2s; }
.publication-card:nth-child(3) { animation-delay: 0.3s; }

.timeline-item:nth-child(1) { animation-delay: 0.2s; }
.timeline-item:nth-child(2) { animation-delay: 0.4s; }
.timeline-item:nth-child(3) { animation-delay: 0.6s; }

/* Responsive Design */
@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }

    .page-subtitle {
        font-size: 1.1rem;
    }

    .publications-stats {
        padding: 60px 0;
        margin-top: -30px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .stat-card {
        padding: 20px;
    }

    .stat-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .publications-section {
        padding: 60px 0;
    }

    .publications-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .publication-icon {
        height: 220px;
        padding: 30px;
    }

    .publication-content {
        padding: 20px;
    }

    .publication-title {
        font-size: 1.2rem;
        min-height: auto;
    }

    /* Timeline Mobile */
    .publications-timeline {
        padding: 60px 0;
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
        padding-left: 80px;
    }

    .timeline-year {
        width: 80px;
        height: 80px;
        font-size: 1.2rem;
        position: absolute;
        left: 0;
    }

    .timeline-content {
        margin: 0;
        width: 100%;
    }

    .timeline-item:hover .timeline-content {
        transform: translateY(-5px);
    }

    .timeline-item:nth-child(even):hover .timeline-content {
        transform: translateY(-5px);
    }
}

@media (max-width: 480px) {
    .page-hero {
        padding: 120px 0 60px;
    }

    .page-title {
        font-size: 2rem;
    }

    .publication-badge {
        top: 15px;
        right: 15px;
        padding: 8px 15px;
        font-size: 0.8rem;
    }

    .publication-badge i {
        display: none;
    }

    .publication-meta {
        flex-direction: column;
        gap: 10px;
    }
}

/* Print Styles */
@media print {
    .publications-stats,
    .hero-particles {
        display: none !important;
    }

    .publication-card {
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }

    .timeline::before {
        background: #333;
    }
}